解题方法
1 . 已知双曲线
的左、右焦点分别为
为坐标原点,直线
与双曲线
的渐近线交于点
(
在第二象限,
在第一象限),下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447120a38d5e15d7a01d36231d648d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af79f45b5880c72a349500da9d8e118d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() |
B.![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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解题方法
2 . 已知双曲线
的离心率为
,则其两条渐近线所成的锐角的余弦值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
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3 . 已知抛物线
与直线
相切.
(1)求抛物线C的方程;
(2)已知过点
且不与x轴垂直的直线l与抛物线C交于A,B两点.若
,求弦
的中点到直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db494cbe354f2043f38f15ddde7f93f.png)
(1)求抛物线C的方程;
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34441124c1aae3bf35f76ae1b31451fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179d7920ec6cd22f3a0cfa6738260153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed919c5b87f48f117bcddee8783f6f06.png)
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2024-03-03更新
|
168次组卷
|
2卷引用:广东省湛江市雷州市第二中学2023-2024学年高二下学期开学考试数学试题
名校
解题方法
4 . 已知矩形ABCD的长与宽的比值为k,
分别为CD的四等分点,现将
沿AF向上翻折,将BCE沿BE向上翻折,使得
,
与四边形ABEF所成角均为
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4663fd2fba5440084cd793b67f2f71.png)
时,证明:平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
(2)当
时,是否存在P为线段BC上一点,使FP与平面ABD所成角为
,如果存在请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e496f4e3c850f3515525fd93148fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8e496f4e3c850f3515525fd93148fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c17fe30d57340c823f3aaa8734fc38d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4663fd2fba5440084cd793b67f2f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f644e851757e3836fe4844659416046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1af463c1192cc6472c70ca84d9bdeb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894706f45d576906aca6acaea15634ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c030b25575d683af91c06e6a3e4f463.png)
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解题方法
5 . 已知抛物线
的焦点到准线的距离为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/564c6c77-d070-474d-832e-1ee844c94b78.png?resizew=164)
(1)求抛物线
的标准方程;
(2)过抛物线
的焦点
的直线交抛物线于
两点,分别过
两点作准线的垂线,垂足分别为
、
两点,以线段
为直径的圆
过点
,求圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7f2b218675cf6bcce95bb65d65bb9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/564c6c77-d070-474d-832e-1ee844c94b78.png?resizew=164)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71023702837182e9ef8605d9824f7c79.png)
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6 . 如图,在四棱锥
中,底面
为矩形,
平面
,
,
分别为棱
,
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/9d1d7b1e-e521-4373-8520-8b4633ce1125.png?resizew=153)
(1)证明:
平面
.
(2)求平面
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee76246dee4f1670e4f21e5eb393b52c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/9d1d7b1e-e521-4373-8520-8b4633ce1125.png?resizew=153)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6261790c66cc71ee3898afabad0c09f4.png)
您最近一年使用:0次
名校
解题方法
7 . 已知双曲线
与
有相同的渐近线,点
为
的右焦点,
,
为
的左右顶点.
(1)求双曲线
的方程;
(2)过点
倾斜角为
的直线
交双曲线
于
,
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42a960d9c62f797d46caa7a8a4a134a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16717e13ebff71049f609189e8f065c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
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8 . 由各棱长均相等的四棱柱
截去三棱锥
后得到的几何体如图所示,底面
为正方形,点O为线段
与
的交点,点E为线段
中点,
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/8295d89d-9fec-4aa5-a650-b196ec574dd9.png?resizew=195)
(1)证明:
平面
;
(2)若点M为线段
(包含端点)上一点,求
与平面
所成角的正弦值的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d236e214b4cb2ed4a914166280c6841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4525c00ed908bed8ba8d353e747a858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/8295d89d-9fec-4aa5-a650-b196ec574dd9.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6dcab5d5bdeb695b261e21c8491039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
(2)若点M为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0a582c36d62d83c16425b2f54b4354.png)
您最近一年使用:0次
2024-02-24更新
|
523次组卷
|
2卷引用:广东省广州市玉岩中学2023-2024学年高三下学期开学考数学试卷
名校
9 . 如图,在四棱锥
中,
底面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8137ebd3ff7cbf25f71c270ceda9c390.png)
.
(1)求证:
平面
.
(2)若平面
与平面
的夹角的余弦值为
,求点A到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8137ebd3ff7cbf25f71c270ceda9c390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400b51a840a7b275ae90638962d9458b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/72d166ca-49ba-482a-9d73-9dcf1e95ff5b.png?resizew=129)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd3bd9c2db8c9f3cb8c6c7d7cbf5465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34cf4760da098099493d4627dacb878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2024-02-24更新
|
275次组卷
|
9卷引用:广东省湛江市雷州市第二中学2023-2024学年高二下学期开学考试数学试题
广东省湛江市雷州市第二中学2023-2024学年高二下学期开学考试数学试题广东省深圳市深圳科学高中2023-2024学年高二下学期开学考试数学试题福建省宁化第一中学2021-2022学年高二上学期开学考试数学试题河北省唐山市滦南县第一中学2021-2022学年高二上学期10月月考数学试题辽宁省新民市第一高级中学2021-2022学年高二上学期10月月考数学试题新疆乌苏市第一中学2022-2023学年高二上学期线上第二次月考数学试题河北省唐山市开滦第二中学2023-2024学年高二上学期10月月考数学试题安徽省安庆市怀宁县高河中学2023-2024学年高二上学期第三次月考数学试题河南省焦作市第十一中学2023-2024学年高二上学期11月月考数学
名校
解题方法
10 . 已知正实数a,b,设甲:;乙:
,则甲是乙的( )
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
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2024-01-31更新
|
248次组卷
|
4卷引用:广东省茂名市高州市第一中学2023-2024学年高一下学期开学考试数学试题